W dniu 30.06.2020 o 16:40, Daniel P. Berrangé pisze:
> On Tue, Jun 30, 2020 at 04:32:44PM +0200, Marcin Juszkiewicz wrote:

>> Can we also default to Q35 and forget that i440fx existed?
>>
>> Do all the pain in one step.
 
> That's upto the various mgmt apps using libvirt to decide. Q35
> is *NOT* a drop-in replacement for i440fx. IOW if libvirt flipped
> the switch existing mgmt apps would certainly break. For example, you
> can't hotplug with Q35, unless the mgmt app pre-populated a bunch of
> pcie-root-port devices. If the mgmt app is using IDE (eg for CDROM)
> it'll break because Q35 requires SATA. There's various other areas
> of pain. So we must let the mgmt apps decide when they are ready
> to switch to use Q35 instead of i440fx.

I am aware of those issues. AArch64 default mode is like Q35.

Wrote few words about that in past:

https://marcin.juszkiewicz.com.pl/2018/02/01/everyone-loves-90s-pc-hardware/
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